俗名烟油。古今秘苑∶烟油染衣，以瓜子水洗之即去。同寿录云∶烟油入目，如小儿及
好吃
烟者误犯之，若将别汤洗，愈洗愈疼，必至瞎而后已。须用乱头发或 缨缓缓揉之即愈。
解蛇毒，涂恶疮顽癣，杀蛊。
毒蛇咬∶刘羽仪验方∶取吃烟杆内脂膏，涂在咬伤处，用手指搓入肉中，痛即止，最效。
蜈蚣咬∶刘氏验方∶用烟筒内膏油，涂在咬处，或烟灰擦之，立止痛。
按∶烟油一名烟膏，味辛微毒，陈贡士毅斋云∶烟油乃五行之气相合而生，近日外丹家
用以
点药金，又可益金色，术士隐其名，呼为太极膏，又曰气泥，曰五行丹，剔以燃灯代油，则
一切毒虫皆不近，入水蛟龙亦畏之。入药，旧竹杆劈取者良，凡梅条、藤条、紫檀、乌木、
老鹳草及纯铜、纯银杆中油，皆不及竹中者性良。惟象牙杆中烟油可杀蛊毒。闽有橄榄木烟
杆，其中油可毒鱼。至烟膏亦各随所食烟质为高下，烟肆所市烟，俱以烟叶喷油打成块，用
铁刨披作丝售之，此为纯叶不杂为上品。更有打块时夹素馨叶，杂以矾红刨成丝，再加姜黄
末以和其色者，其气燥烈损人，烟膏亦淡而薄，不及上品力浓也。海盐朱进士醒庵云∶烟油
解蛇毒，初不甚信，后见里人获一赤练蛇，长八九尺，粗如臂，口吐毒烟，一犬近之，蛇嘘
以气，即腹裂死。一人戏以旧竹烟杆去头嘴，以竹丝通出油，刺入蛇口，蛇啮之即瞑目闭口
，身卷缩，俄复伸长，如是数次，直如绳而毙。始知其解毒杀虫之功，信不虚谬。诸城刘仲
旭少府云∶西北口外出一种毒虫，名曰蜢 。状如中土虻蝇，人出遇之，即触人面，不论何
处被其触者，亦不甚痛，顷觉眼眶四围出细蛆，攒食睛膏，痛不可忍。彼土人治法∶惟取烟
杆四五枝，折取烟油，涂目内，忍痛片时，其蛆皆死，然后再用温水洗去烟油即愈。 椿园
闻见录∶挞拉巴哈台即准噶尔故地，夏多白蝇为害，触人畜眼角，辄遗蛆而去，非以胶粘之
不出。 按常中丞笔记云∶西北台站及伊芳犁等处，出一种野蝇，乱扑人面，若被其触者，眼
角内即出蛆虫，痛痒异常，有因此成瞽者。土人多以烟油涂眼角治之。然疾愈后，目亦红肿
，数日不消。总不若蒙古治法；以鱼胶一块，向眼角粘出之，又不损目，较烟油为佳。
俗名烟油。《古今秘苑》记载：烟油沾染衣物，用瓜子水清洗即可去除。《同寿录》说：烟油进入眼睛，如果是小孩或爱吃烟的人误犯，如果用其他热水清洗，越洗越疼，必然导致失明才停止。必须用乱头发或缨穗慢慢揉搓，随即痊愈。
毒蛇咬伤：刘羽仪的验方：取吃烟杆内的脂膏，涂在咬伤处，用手指搓入肉中，疼痛立即停止，效果最好。
蜈蚣咬伤：刘氏的验方：用烟筒内的膏油，涂在咬伤处，或用烟灰擦拭，立刻止痛。
按语：烟油又名烟膏，味辛，微有毒性。陈贡士毅斋说：烟油是五行之气相合而生，近日外丹家用来点化药金，又能增益金色，术士隐去其名称，称为太极膏，又叫气泥、五行丹。用它剔出来点燃灯代替油，则一切毒虫都不靠近，入水蛟龙也畏惧它。入药使用，以劈取旧竹杆中的为良。凡是梅条、藤条、紫檀、乌木、老鹳草以及纯铜、纯银杆中的油，都不如竹杆中的油性良。只有象牙杆中的烟油可以杀蛊毒。福建有橄榄木烟杆，其中的油可以毒鱼。至于烟膏的质量也随所吸食的烟质而分高下。烟铺所卖的烟，都是用烟叶喷油打成块，用铁刨刨成丝出售，这是纯叶不掺杂质的上品。更有在打块时夹杂素馨叶，混杂矾红刨成丝，再加姜黄末调和颜色的，这种烟气燥烈伤人，烟膏也淡而薄，不如上品的效力浓烈。海盐朱进士醒庵说：烟油能解蛇毒，起初不太相信，后来见同乡人抓到一条赤练蛇，长八九尺，粗如手臂，口吐毒烟，一只狗靠近它，蛇呼气，狗即腹部破裂而死。一人戏弄，将旧竹烟杆去掉头嘴，用竹丝通出里面的油，刺入蛇口，蛇咬住后即刻闭眼闭口，身体卷缩，过一会儿又伸长，如此数次，直像绳子一样死去。这才知道它解毒杀虫的功效，确实不虚。诸城刘仲旭少府说：西北口外有一种毒虫，名叫蜢蝱。形状像中原地区的虻蝇，人外出遇到它，就触碰人的脸，不论被触何处，也不怎么痛，一会儿觉得眼眶四周长出细蛆，聚集食用眼珠里的膏液，疼痛难忍。当地人的治疗方法：只取烟杆四五枝，折断取出烟油，涂在眼睛里，忍受片刻疼痛，那些蛆都死了，然后再用温水洗去烟油即痊愈。《椿园闻见录》记载：挞拉巴哈台即准噶尔故地，夏天多白蝇为害，触碰人畜眼角，就留下蛆虫离开，不用胶粘不出来。按常中丞笔记说：西北台站及伊犁等处，有一种野蝇，乱扑人脸，如果被它触碰，眼角内就生出蛆虫，痛痒异常，有人因此失明。当地人多用烟油涂眼角治疗。然而病愈后，眼睛也会红肿，几天不消退。总不如蒙古人的治法：用一块鱼胶，向眼角粘出蛆虫，又不损伤眼睛，比烟油更好。
Commonly known as *Yanyou* (Tobacco Tar). *Gujin Miyuan* records: If *Yanyou* stains clothing, it can be removed by washing with water from melon seeds. *Tongshu* states: If *Yanyou* enters the eyes, particularly for children or those who habitually smoke, and one attempts to wash it out with other hot water, the pain will intensify with washing, inevitably leading to blindness. One must use loose hair or tassels to gently rub the area, after which recovery occurs promptly.
It can resolve snake venom, be applied to malignant sores and stubborn tinea (fungal skin infections), and kill gu poison (parasitic disease).
Snake bite: A verified prescription by Liu Yuyi: Take the grease from inside a smoking pipe, apply it to the bite wound, and rub it into the flesh with fingers; the pain stops immediately, yielding excellent results.
Centipede bite: A prescription by the Liu family: Apply the oil from the tobacco pipe to the bite site, or rub it with tobacco ash; pain ceases instantly.
Note: *Yanyou* is also called *Yangao* (Tobacco Paste). It has a pungent taste and slight toxicity. Chen Yizhai, a Gongshi (scholar), stated that *Yanyou* is generated by the convergence of the Qi of the Five Elements. Recently, external alchemists have used it to refine medicinal gold, enhancing its luster. Practitioners conceal its name, calling it *Taiji Gao* (Supreme Ultimate Ointment), or *Qini* (Qi Mud), or *Wuxing Dan* (Five Elements Pill). When extracted to fuel lamps instead of oil, all poisonous insects avoid it, and dragons in the water fear it. For medicinal use, that obtained from split old bamboo pipes is superior. The oil from plum branches, rattan, rosewood, ebony, old stork grass, pure copper, or pure silver pipes is inferior to that from bamboo in terms of therapeutic nature. Only the *Yanyou* from ivory pipes can kill gu poison. In Fujian, there are olive wood pipes, the oil of which can poison fish. The quality of *Yangao* varies according to the type of tobacco consumed. Tobacco sold in shops is made by spraying tobacco leaves with oil, pressing them into blocks, and shaving them into strips with an iron plane; this pure leaf product without admixtures is considered the highest grade. Some manufacturers mix jasmine leaves and alum-red during block formation, shave them into strips, and add turmeric powder to adjust the color. This variety produces a dry, harsh smoke that harms the body; the resulting paste is pale and thin, lacking the potency of the premium grade. Zhu Xing'an, a Jinshi (imperial graduate) from Haiyan, stated: "I initially did not believe that *Yanyou* could resolve snake venom, until I witnessed a villager capture a red-banded krait, eight or nine chi long and as thick as an arm, exhaling toxic vapor. A dog approached, and upon the snake's exhalation, the dog's abdomen ruptured and it died. Another person, in jest, removed the mouthpiece of an old bamboo pipe, drew out the oil using a bamboo filament, and pierced the snake's mouth with it. The snake bit down, closed its eyes and mouth, curled up, then stretched out again several times, eventually becoming stiff as a rope and dying. Only then did I realize its efficacy in resolving toxins and killing parasites was genuine." Liu Zhongxu, Shaofu (deputy magistrate) from Zhucheng, said: "In the northwest beyond the passes, there exists a poisonous insect named *Mengmang*. It resembles horseflies common in central China. When people encounter it outdoors, it touches their faces. Regardless of where touched, the pain is not severe initially, but soon fine maggots appear around the eye sockets, gathering to consume the ocular fluid, causing unbearable pain. The local treatment involves taking four or five pipe stems, breaking them to extract the oil, applying it inside the eye, enduring the pain for a moment until the maggots die, and then washing off the oil with warm water for recovery." *Chunyuan Wenjian Lu* records: Tala Bahatai, the former land of Dzungaria, suffers from white flies in summer that harm humans and livestock. They touch the corners of the eyes and leave maggots behind, which cannot be removed without adhesive. According to Chang Zhongcheng's notes: At the northwest relay stations and places like Yili, wild flies swarm human faces. If they touch the skin, maggots emerge from the eye corners, causing extreme pain and itching, sometimes leading to blindness. Locals often treat this by applying *Yanyou* to the eye corners. However, after recovery, the eyes remain swollen and red for several days. This is inferior to the Mongolian method: using a piece of fish glue to adhere to and extract the maggots from the eye corner, which does not damage the eye and is preferable to *Yanyou*.